
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }

        .wrap {
            width: 300px;
            margin: 100px auto 0;
        }

        table {
            border-collapse: collapse;
            border-spacing: 0;
            border: 1px solid #c0c0c0;
            width: 300px;
        }

        th,
        td {
            border: 1px solid #d0d0d0;
            color: #404060;
            padding: 10px;
        }

        th {
            background-color: #09c;
            font: bold 16px "微软雅黑";
            color: #fff;
        }

        td {
            font: 14px "微软雅黑";
        }

        tbody tr {
            background-color: #f0f0f0;
        }

        tbody tr:hover {
            cursor: pointer;
            background-color: #fafafa;
        }
    </style>
</head>
<body>
<div class="wrap">
    <table>


        <thead>
            <tr>
                <th>
                    <input type="checkbox" id="theadInp" />
                </th>
                <th>菜名</th>
                <th>饭店</th>
            </tr>
        </thead>



        <tbody id="tbody">
            <tr>
                <td>
                    <input type="checkbox" />
                </td>
                <td>红烧肉</td>
                <td>田老师</td>
            </tr>
            <tr>
                <td>
                    <input type="checkbox" />
                </td>
                <td>西红柿鸡蛋</td>
                <td>田老师</td>
            </tr>
            <tr>
                <td>
                    <input type="checkbox" />
                </td>
                <td>红烧狮子头</td>
                <td>田老师</td>
            </tr>
            <tr>
                <td>
                    <input type="checkbox" />
                </td>
                <td>日式肥牛</td>
                <td>田老师</td>
            </tr>
        </tbody>

    </table>
</div>
    <script>
        var theadInp = document.getElementById("theadInp");
        var tbody = document.getElementById("tbody");
        var inps = tbody.getElementsByTagName("input");

        theadInp.onclick = function () {
            for(var i=0;i<inps.length;i++){
                inps[i].checked = this.checked;
            }
        }


        for(var i=0;i<inps.length;i++){
            inps[i].onclick = function () {
                var flag = true;
                for(var j=0;j<inps.length;j++){
                    if(!inps[j].checked){
                        flag = false;
                    }
                }
                theadInp.checked = flag;
            }
        }


    </script>
</body>
</html>